That's one of the ways to develop intuitive sense - start using it everywhere. It will never develop if it's not used. Besides, officially US was supposed to sw

That's one of the ways to develop intuitive sense - start using it everywhere. It will never develop if it's not used. Besides, officially US was supposed to switch to metric system anyway, so formally there is nothing wrong with using it and no one should be complaining. Except it takes ages and almost not moving anywhere due to complete apathy from the government about it.